This article provides a comprehensive sample of an affidavit letter, guiding readers through the essential components and format. I am providing this affidavit to verify my income as I have no other income documentation available to me.You're from a lowfraud and you have good primary evidence, then add in a few photos and you're good to go. You really don't need the affidavits. I am competent to testify as to the matters set forth herein and if called as a witness would testify as set forth below. I highly recommend Diana for any notary services. She notarized numerous documents for us, including documents for out-of-state purposes.